April 27th, 2015: Rainy days and Mondays do not stop the mail, nor today's #haskell problem! http://lpaste.net/6468251516921708544 The solution posted at http://lpaste.net/6973841984536444928 … shows us view-patterns and how to spell the word 'intercalate'.

April 24th, 2015: Bidirectionally (map) yours! for today's #haskell problem http://lpaste.net/1645129197724631040 A solution to this problem is posted at http://lpaste.net/540860373977268224

April 20th, 2015: Today we can't see the forest for the trees, so let's change that http://lpaste.net/3949027037724803072 A solution to our first day in the tag-forest http://lpaste.net/4634897048192155648 ... make sure you're marking your trail with breadcrumbs!

April 16th, 2015: "more then." #okaythen Sry, not sry, but here's today's #haskell problem: http://lpaste.net/6680706931826360320 I can't even. lolz. rofl. lmao. whatevs. And a big-ole-blob-o-words is given as the solution http://lpaste.net/2810223588836114432 for today's #haskell problem. It ain't pretty, but... there it is

April 10th, 2015: Today's #haskell problem delivered with much GRAVITAS, boils down to: don't be a dumb@$$ when investing http://lpaste.net/5255378926062010368 #KeepinItReal The SMA-advisor is REALLY chatty, but how good is it? TBD, but here's a very simple advisor: http://lpaste.net/109712 Backtesting for this strategy is posted at http://lpaste.net/109687 (or: how a not so good buy/sell strategy give you not so good results!)

April 8th, 2015: MOAR! MOAR! You clamor for MOAR real-world #haskell problems, and how can I say no? http://lpaste.net/5198207211930648576 Downloading stock screens Hint: get the screens from a web service; look at, e.g.: https://code.google.com/p/yahoo-finance-managed/wiki/YahooFinanceAPIs A 'foldrM'-solution to this problem is posted at http://lpaste.net/2729747257602605056

April 3rd, 2015: reverseR that list like a Viking! Rrrrr! for today's problem http://lpaste.net/8513906085948555264 … #haskell Totes cheated to get you the solution http://lpaste.net/1880031563417124864 used a library that I wrote, so, like, yeah, totes cheated! ;)

April 2nd, 2015: We're breaking new ground for today's #haskell problem: let's reverse lists... relationally. And tag-type some values http://lpaste.net/389291192849793024 After several fits and starts @geophf learns how to reverse a list... relationally http://lpaste.net/7875722904095162368 and can count to the nr 5, as well

April 1st, 2015: Take a drink of today's #haskell problem: love potion nr9 http://lpaste.net/435384893539614720 because, after all: all we need is love, la-di-dah-di-da! A solution can be found au shaque d'amour posted at http://lpaste.net/6859866252718899200

March 27th, 2015: Today's #haskell problem is unification of multiple free variables http://lpaste.net/370356889654919168 We find this to be 'CoSimple.' 34 lines (and a new n-to-1 data mapping-type) defining not a 'CoSimple' unifier but now an 'UnSimple' one. http://lpaste.net/8114086012700852224 Ugh!

March 26th, 2015: Unification is interesting! http://www.cs.uu.nl/research/techreps/repo/CS-2008/2008-027.pdf (Functional Unification paper) Let's look at the unification-problem for today's #haskell problem http://lpaste.net/1572781401336446976 We define simple unification (of up to one free logic variable) in a module called unification.simple, oddly enough. http://lpaste.net/5064654031335456768

March 25th, 2015: In Old Norse, words end with 'R' (not all). For today's #Haskell problem, relations end with 'R' http://lpaste.net/8067966125595426816 Where I learn to speak Old Norse with a slightly better accent: unifying lists with headR and tailR http://lpaste.net/4854317134819360768 with unifyLists

March 6th, 2015: Champernowne's constant for today's #haskell problem http://lpaste.net/6911025218794291200 Please let me know if you can NOT access this problem: I've marked it private as previous ones are being modified in place. DON'T DO THAT! In which we show @geophf triumphs with brütish-forcisms for today's #haskell solution http://lpaste.net/2944338052937416704

March 5th, 2015: For today's #haskell problem, we ponder why they aren't calledLEFT-triangles. Is it a plot? http://lpaste.net/121797 Leftist triangles are subject to the (IO) State (monad) ... geddit? #sigh never mind anyway, solution: http://lpaste.net/122143 Or, put another way: in which we see @geophf can not have a function type that includes -> Int -> ... AND, we really need MapReduce here!

March 3rd, 2015: There's more than a 1-in-a-million chance there are 'sum' double palindromic numbers in today's #haskell problem http://lpaste.net/121470 The solution was not too hard, M. Euler! http://lpaste.net/121471

March 2nd, 2015: What-what! abcde * fghij is equal to ... well, something, it appears. http://lpaste.net/121421 and the prob1, prob2 winners are ...http://lpaste.net/121466 A solution to today's #haskell problem.